Screw actuated door securing device



May 15, 1956 R. H. BOGGS 2,745,450

SCREW ACTUATED DOOR SECURING DEVICE Filed May 13, 1955 v2 50 :51 g. E.

INVENTOR. L: 5' Ros/m7 H. B0665 iclnited fltates Patent SCREW ACTUATED DOOR SECG DEVICE Robert H. Boggs, Carrollton, Ky.

Application May 13, 1953, Serial No. 354,75fl

2 Claims. (Cl. 144295} This invention relates to door stops and more particularly to stops that can be used to hold doors rigidly, while open, whereby workmen can work freely with both hands on the door.

An object of this invention is to provide a device for holding doors, while open, in a firm and secure position so that workmen may work freely while fitting locks to them or performing other work thereon.

Another object of the invention is to provide a device that so holds the doors that the same can not creep ofi the device while work is being done on them.

A further object of the invention is to provide a device having a base that extends outwardly to both sides of the door and a door rest that can be jacked by the base and a screw into firm and positive engagement with the door.

The above and other objects of the invention will be apparent to those of ordinary skill in the art to which it pertains, from the following description and drawing.

In the drawings:

Figure l is an end view of a door stop or securing device shown in position under the bottom of a door;

Fig. 2 is a view in elevation of the device as seen looking in the direction of arrow II in Fig. 1; and

Fig. 3 is a view of a piece of angle iron from which one component of the device shown in Figs. 1 and 2 may be formed.

In Fig. 1 a door stop 1 is shown as applied to a door 2 in open position to hold it securely in that position.

Device 1 comprises a pair of bell cranks 3 and 4 and door rest 5. Rest 5 is pivotally connected to the upright arms 6 and 7 of the cranks, as by means of rivets 8 and 9, as shown. A screw 10 is provided to turn the cranks to raise and lower the rest as will appear infia.

Door rest 5 may be made from a piece of angle iron having a flange 11 extending horizontally and adapted to be positioned under the door preparatory to securing it. Flange 11 may have a lug 12 that sinks into the bottom of the door to prevent slipping of the door on the flange.

Cranks 3 and 4 are similar in construction except that one is right and the other left hand. Each crank may be made from angle iron as shown in Fig. 3. By notching one of the flanges as at 13, the angle may be bent to form a crank having the upright arm 6 or 7 and the base arm 15 or 16.

Screw 10 may be threaded through either arm 6 or 7. As shown, it is threaded through a flange of arm 7 so that the end of it can be engaged with a flange of arm 6.

The flange of arm 6 may be provided with a socket 17 to receive the end of the screw. The screw may be provided with a handle crank 18 for turning the same. If the thickness of the flange of arm 7 through which the screw is threaded, is not heavy enough to provide an adequate number of threads, that flange may be backed by a nut or plate 18 secured to the flange. The flange and plate are tapped, and the axis of the tapped hole is preferably disposed at an angle as shown, so that the screw will have a position as indicated when the base arms of cranks 3 and 4 lie flatwise on the floor.

When screw 10 is advanced into engagement with the socket 17 and turning of the screw is continued, arms 6 and 7 are turned counterclockwise and clockwise, respectively, about the toes 20and 21 of the base arms 15 and 16. Such turning of the cranks jacks or elevates the door rest flange 11 into engagement with the door as shown. By turning the screw 10 the pressure exerted by flange 11 may be developed to the point to assure a positive securing of the door.

When the door has been thus secured, a workman fitting a lock in the door, can work with both hands free with assurance that the door will not swing on its hinges. The same may be said for painters or decorators who can work better and more efficiently with both hands free.

Having thus described the invention, it will be apparent that the details of the illustrated embodiment may be modified without departing from the spirit or the scope of the invention.

Therefore, what is claimed as new and desired to be secured by Letters Patent is:

l. A device for holding a swinging door, while open, in a fixed position while work is being done thereon, said device comprising a member having a vertical back and a flange adapted to be positioned under the bottom of the door, bell crank members pivotally secured to the back of said flanged member at locations adjacent the opposite edges thereof, the arms of said bell crank members extending outwardly from said vertical back and disposed to rest on the floor on opposite sides of the door to form a relatively broad support base, and means for turning said bell cranks in opposite directions, whereby the flanged member is lifted and urged firmly against the under side of the door to wedge the same and restrain it against turning on the door hinges.

2. A device according to claim 1 in which the means for turning the bell cranks comprises a screw threaded member extending through and in threaded engagement with an arm of one of said bell cranks, with one end adapted to engage an arm of the other bell crank whereby, when the screw is advanced in one direction, the bell cranks are turned in unison in opposite directions.

References Cited in the file of this patent UNITED STATES PATENTS 701,431 Watts June 3, 1902 800,134 Bever Sept. 26, 1905 1,336,202 Corsi Apr. 6, 1920 1,736,202 Larson Nov. 19, 1929 2,585,158 Morgenthaler Feb. 12, 1952 2,594,249 Tims Apr. 22, 1952 

